Abstract
This invention discloses a method of using a microfluidic chip to sort high motility sperm. The characteristic of the invention is: semen and a medium are injected into a channel via a plurality of inlets of a microfluidic chip, and exported via a plurality of outlets. Owing to the characteristic of microfluidics, the semen and the medium will form a semen laminar flow and a medium laminar flow in the channel, wherein the semen laminar flow and the medium laminar flow are parallel to each other. Hence, higher motile sperm may pass through more layers of laminar flows within a limited time, whereby sperms of different motility levels can be respectively collected from different outlets.